213 lines
5.8 KiB
C
213 lines
5.8 KiB
C
/*
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* Copyright (c) 2016-2017, Alex Taradov <alex@taradov.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _USB_STD_H_
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#define _USB_STD_H_
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/*- Includes ----------------------------------------------------------------*/
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#include <stdint.h>
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#include <stdbool.h>
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#include "utils.h"
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/*- Definitions -------------------------------------------------------------*/
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enum
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{
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USB_GET_STATUS = 0,
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USB_CLEAR_FEATURE = 1,
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USB_SET_FEATURE = 3,
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USB_SET_ADDRESS = 5,
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USB_GET_DESCRIPTOR = 6,
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USB_SET_DESCRIPTOR = 7,
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USB_GET_CONFIGURATION = 8,
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USB_SET_CONFIGURATION = 9,
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USB_GET_INTERFACE = 10,
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USB_SET_INTERFACE = 11,
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USB_SYNCH_FRAME = 12,
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};
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enum
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{
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USB_DEVICE_DESCRIPTOR = 1,
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USB_CONFIGURATION_DESCRIPTOR = 2,
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USB_STRING_DESCRIPTOR = 3,
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USB_INTERFACE_DESCRIPTOR = 4,
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USB_ENDPOINT_DESCRIPTOR = 5,
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USB_DEVICE_QUALIFIER_DESCRIPTOR = 6,
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USB_OTHER_SPEED_CONFIGURATION_DESCRIPTOR = 7,
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USB_INTERFACE_POWER_DESCRIPTOR = 8,
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USB_OTG_DESCRIPTOR = 9,
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USB_DEBUG_DESCRIPTOR = 10,
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USB_INTERFACE_ASSOCIATION_DESCRIPTOR = 11,
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USB_BINARY_OBJECT_STORE_DESCRIPTOR = 15,
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USB_DEVICE_CAPABILITY_DESCRIPTOR = 16,
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USB_CS_INTERFACE_DESCRIPTOR = 36,
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};
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enum
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{
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USB_DEVICE_RECIPIENT = 0,
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USB_INTERFACE_RECIPIENT = 1,
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USB_ENDPOINT_RECIPIENT = 2,
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USB_OTHER_RECIPIENT = 3,
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};
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enum
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{
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USB_STANDARD_REQUEST = 0,
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USB_CLASS_REQUEST = 1,
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USB_VENDOR_REQUEST = 2,
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};
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enum
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{
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USB_OUT_TRANSFER = 0,
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USB_IN_TRANSFER = 1,
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};
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enum
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{
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USB_IN_ENDPOINT = 0x80,
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USB_OUT_ENDPOINT = 0x00,
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USB_INDEX_MASK = 0x7f,
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USB_DIRECTION_MASK = 0x80,
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};
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enum
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{
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USB_CONTROL_ENDPOINT = 0 << 0,
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USB_ISOCHRONOUS_ENDPOINT = 1 << 0,
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USB_BULK_ENDPOINT = 2 << 0,
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USB_INTERRUPT_ENDPOINT = 3 << 0,
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USB_NO_SYNCHRONIZATION = 0 << 2,
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USB_ASYNCHRONOUS = 1 << 2,
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USB_ADAPTIVE = 2 << 2,
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USB_SYNCHRONOUS = 3 << 2,
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USB_DATA_ENDPOINT = 0 << 4,
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USB_FEEDBACK_ENDPOINT = 1 << 4,
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USB_IMP_FB_DATA_ENDPOINT = 2 << 4,
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};
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#define USB_CMD(dir, rcpt, type, cmd) \
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((USB_##cmd << 8) | (USB_##dir##_TRANSFER << 7) | \
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(USB_##type##_REQUEST << 5) | (USB_##rcpt##_RECIPIENT << 0))
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/*- Types -------------------------------------------------------------------*/
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typedef struct PACK
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{
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uint8_t bmRequestType;
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uint8_t bRequest;
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uint16_t wValue;
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uint16_t wIndex;
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uint16_t wLength;
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} usb_request_t;
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typedef struct PACK
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{
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uint8_t bLength;
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uint8_t bDescriptorType;
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} usb_descriptor_header_t;
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typedef struct PACK
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{
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uint8_t bLength;
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uint8_t bDescriptorType;
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uint16_t bcdUSB;
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uint8_t bDeviceClass;
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uint8_t bDeviceSubClass;
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uint8_t bDeviceProtocol;
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uint8_t bMaxPacketSize0;
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uint16_t idVendor;
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uint16_t idProduct;
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uint16_t bcdDevice;
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uint8_t iManufacturer;
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uint8_t iProduct;
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uint8_t iSerialNumber;
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uint8_t bNumConfigurations;
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} usb_device_descriptor_t;
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typedef struct PACK
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{
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uint8_t bLength;
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uint8_t bDescriptorType;
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uint16_t wTotalLength;
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uint8_t bNumInterfaces;
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uint8_t bConfigurationValue;
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uint8_t iConfiguration;
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uint8_t bmAttributes;
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uint8_t bMaxPower;
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} usb_configuration_descriptor_t;
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typedef struct PACK
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{
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uint8_t bLength;
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uint8_t bDescriptorType;
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uint8_t bInterfaceNumber;
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uint8_t bAlternateSetting;
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uint8_t bNumEndpoints;
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uint8_t bInterfaceClass;
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uint8_t bInterfaceSubClass;
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uint8_t bInterfaceProtocol;
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uint8_t iInterface;
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} usb_interface_descriptor_t;
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typedef struct PACK
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{
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uint8_t bLength;
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uint8_t bDescriptorType;
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uint8_t bEndpointAddress;
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uint8_t bmAttributes;
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uint16_t wMaxPacketSize;
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uint8_t bInterval;
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} usb_endpoint_descriptor_t;
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typedef struct PACK
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{
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uint8_t bLength;
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uint8_t bDescriptorType;
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uint16_t wLANGID;
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} usb_string_descriptor_zero_t;
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typedef struct PACK
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{
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uint8_t bLength;
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uint8_t bDescriptorType;
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uint16_t bString;
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} usb_string_descriptor_t;
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/*- Prototypes --------------------------------------------------------------*/
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void usb_init(void);
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void usb_set_callback(int ep, void (*callback)(int size));
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bool usb_handle_standard_request(usb_request_t *request);
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void usb_send_callback(int ep);
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void usb_recv_callback(int ep, int size);
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#endif // _USB_STD_H_
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